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Arden Hills, MN Pavement Condition Assessment and Analysis The 3D cameras can detect one -millimeter -wide cracks and full -lane -width rutting, as required by ASTM D6433, on the pavement surface at speeds up to 65 mph. Due to the versatility of the LCMS-2 technology, the automated pavement condition survey will be performed at near posted speeds, and traffic control will not be necessary for the data collection effort. Pavement data collection and imagery surveys are expected to progress at a rate of between 35 and 50 miles per day for the City. The IMS team then processes the collected data using a combination of advanced analytical tools and rigorous, manual QC/QA performed by IMS' certified Pavement Condition Index (PCI) raters to determine accurate and repeatable PCI values for each roadway segment. Furthermore, we deliver our PCI ratings and supporting data (distress information, rutting, and IRI values) in both spreadsheet and GIS formats for easy review. The data that we provide may be used immediately for decision making or be imported into any pavement management system. During data collection, IMS implements routines that are performed each day of data collection to ensure data consistency. These include: • Equipment is calibrated, and daily reports are completed. • All sensors are continually monitored to ensure they are receiving data within specification. • The Crew Chief and operator manually monitor the HD digital images, GPS, distress recorder, roughness measurements, and rutting data. • Each street is noted on the inventory and map, as well as through GPS and assignment of the RST van number. • Production is tracked and records of coverage are documented. • A corrective action plan is followed, as necessary. • All data is backed up and sent to the IMS main office for processing. ASTM D6433 Pavement Condition Evaluation During and following the data collection effort, our team will evaluate all collected pavement imagery and surface measurements to arrive at Pavement Condition Index (PCI) values. This is a six -step process that includes the following tasks: 1. RoadlnspectTM Pavement Distress Detection — Cracks, rutting, and other pavement distresses are automatically detected in both the 2D and 3D pavement images. IRI values are also calculated at this time. (Note: The Roadlnspect'software was developed by Pavemetrics, the firm that manufactures the LCMS-2 technology.) LCMS-2 cracking data in QC/QA review stage. IMS Pavement Distress Classification — Pavement distresses detected by the RoadlnspectTm software are then classified by type (e.g., alligator cracking, bleeding, edge cracking, etc.) and severity (e.g., low, medium, or high) based on predefined criteria (e.g., ASTM D6433). IMS has created a suite of custom tools that include rule -based algorithms in conjunction with artificial intelligence to accurately classify pavement distresses. IMS PCI Calculation — Pavement distress data is imported into IMS' PCI calculation software, and PCI values are determined for each roadway segment using a scale from zero (0) to one hundred (100) as defined in ASTM D6433. IMS Infrastructure Management Services, LP 4